\begin{tabular}{l ccc}
\hline
\hline
\addlinespace
Variable & Wave 1 & Wave 2 & US population (2019) \\
\addlinespace
\hline
\addlinespace
Female & 51\% & 51\% & 51\%\\
Age: 18-34 & 30\% & 30\% & 30\%\\
Age: 35-54 & 32\% & 32\% & 32\%\\
Age: 55+ & 38\% & 38\% & 38\%\\
Education: Bachelor's degree or above & 31\% & 31\% & 31\%\\
Region: Northeast & 17\% & 17\% & 17\%\\
Region: Midwest & 21\% & 21\% & 21\%\\
Region: South & 38\% & 38\% & 38\%\\
Region: West & 24\% & 24\% & 24\%\\
Democrat*    & 54\% & 53\% & 52\%\\
Republican*    & 46\% & 47\% & 47\%\\
Income: Below 50k*   & 41\% & 45\% & 37\%\\
Income: 50k to 100k*   & 39\% & 35\% & 31\%\\
Income: Above 100k*   & 19\% & 20\% & 31\%\\
\hline
\hline
\end{tabular}